Nut-machine.



PATENTBD JAN. a, 1907;

NLAGKNER. NUT MACHINE.

APPLICATION FILED E`EB.18,1905A 7 SHEETS-SHEET 1.

| I l I Il L l.

INVENTOR l/s WITNESSES:

Atts l PATENTED JAN. 8, 1907. F. LACKNER. NUT MACHINE.

APPLICATION FILED 121313.18, 1905,

2 T E B H S s T E INVENTOR No. 840,776. PATENTBD JAN. s, 19o?. F. LACKNER.

NUT MACHINE.

APPLICATION FILED FEB.18,1905,.

'7 SHEETS-SHEET 3.

3 J FIE. 15

- 31---.' -17 73 15 i ib :u d lo g 47 L 5 JAN 76 n wn'NEssEs: INVEN-ron glu/df f/ l /l Attys No. 840,776. PATENTBD JAN. 8, 1907.

P. LACKNER.

NUT MACHINE.

APPLICATION FILED IBB.18, 1905.

' 7 SHEETSSHEET 4.

FIGA- l N0. 840,776. PATENTED JAN..8, 1907. l P. LACKNER.

NUT MACHINE. I ABPL'I'ATION FILED P31118, 1905.

' 7 SHEETS-SHEET v en Q4 INVE 71A' Attys PATENTBD JAN. a, 1907. RLACKNBR.

NUT MACHINE.

APPLICATION FILED FBB.18, 1905.V

, v SHEETS-SHEET '1.

IIIFI.

INVENTOR combination of parts whereby a blankl isv caused to assume itsiinalform and is en- 'f UNITED s'rArlEs PATENT CFEICE.'

FREDERICK LACKNER, oF rir'rsBURG, PENNsYLvANIA, AssICNoR To f -NEELY NUTr a BOLT COMPANY, for rirrsuee, PENNSYLVANIA.

NUT-MACHINE.

Specification of Letters Patent.

Patented Jan. a, 1907.

Application filed February 18, 1905. Serial No. 246.323.

To all whom it may concern? Be itknown that I, FREDERICK LACKNER, a citizen of the United States, residing at Pittsburg, thecounty of Allegheny and State of Pennsylvania, have invented or discoveredV certain new and useful Improvements in `Nut-Machines, of, which improvements the following is a s eciiic'ation The invention describe herein relates to certain improvements in `the manufacture of nuts, and has for its object a construction and larged by Athe displacement of metal infthe formation of the `transverse opening therethrough, thereby effecting a conslderable saving of material. l

The invention is herein more -fully describedan'd claimed.l In- `the 'accompanying drawings, forming apart of this specification, Figure 1 is a'plan view, partly in section, of m improved ma` chine.

I ntf Fig. 1.

Fig. y2 is avsect'iona elevation,` the laneof section being Lindicatedbythe line Fig`. 3 is' a side elevation of the machine. Figs.` 4 and 5` are sectional elevations on lanes indicated, respectively,

bythe lines` `IV andV, Fig-1. j Fig. 6 is ajperspective view of the jaw-carrier. Fi s.' 7 8, 9, 10, 11, and 12 are sectional detai ed views illustrating the various steps in the formation of the `nutl ..Fig. 13 is a sectional plan viewillustrating a modiiication machine. These reciprocatin of the machine, and Fig. 14 is a sectional detail view illustrating a step in the o eration of forming nuts bythe machine s own in Fi 1 3. l

Inv the practice of my invention the shaping-matrix is formed in the movable jaws 1 and 1, which are secured to slides 2 and-2a, arranged to reciprocate back and forth in guides 3 and 4, formed on or secured to horizontally-arranged bars 6 and 7, las clearly shown in Figs. 2,4, and 5,. These bars are mounted in suitable gui'deways'on the su porting-bed 8, arrangedtransverse of `t e bars,` which with the ides 3 and 4 form t e carriers for the slides 2- 2a and jaws 1 1, are secured to a' yokeqQ, surrounding `the cams 10 and 11, which are constructed 'and arranged to impart "the'y desired motions to the carrier. The

cam 1"()Mis so constructed that it will move the 'fri/1.

j operation upon the blank hel The return movement of thel the'frame of the mac This feeding of the bar occurs when the carsis other blank is effected by the cam 11, whichv is adapted to operate on a lateral extension 12 on the rear wall of the oke 9, as clearly shownin Figs. 1 and 6, T e heads or slides 2 and 2a are connected, respectively, to yokes 'j 13 and 14, in which operate the cams 15 and y 16. These cams, as clearly shown Fig. 2,

are made of a length so as to be capable of holding the slides inwardly during the transverse shifting of the carrier by the cam 10, asfheretofore described. It is preferred to form a stem or extension 17 on the yoke 13,

`said stem projecting up through a suitablel bearin `on a guiding-slide 18, adapted to move ack and forth with the'yoke.

The bar or rod from which the nuts are to be formedhaving a transverse dimension less than that of the nut is fed by hand or otherwise through a'pssage or opening l20 in 'ne against the stop 21.

rier, with the jaws 1 and 1, is at its extreme position to the left in Fig. 2 and the jaws are open. As soon 'as the feed has occurred the cams 15 and 16 operate' to close' the jaws around the bar, and when it is desired to form a nut with a projection or central `enA largement on one end the jaws are provided with inwardly-projecting edges 22, adapted to close around the bar, as c early shown in Figs. 1, 7, to 12. As soon as the .jaws Vhave closed in the manner stated the cam 1Q oomesinto operation and moves the carrier,

with the jaws 1 and 1a', to theri ht Fig. 2', thereby 'severing -the portion o the bar i11- closed within the' jaws from the bar in a plane outside of the edges 22 the edge 'of the ole or passage 2O and the inwardly-projecting portions 22 of the jaws 1 and 1a o erating as shears to effect the cutting This movement ofthe cam 10 and the parts shifted thereby carries the jaws with the inclosed lblank in front of or into alinement with the lroo unch 23.` During this movement of the jaws and blank the latter is held within the matrix lby thestop lor abutment 21. The punch 23 is secured to the reciprocati s ,head

24, provided at its rear end with a yo `e 25,l

the pro er time. As will be seen y reference to 4ig. 9, this punch 23 does not pass entirely throu h the blank but only partially or sufficient far as to edect a displacement of metal su 'cient to rcause a lateral spreading of the nut to completely fill the matrix. The punch 23 is now withdrawn by the operation of the cam 28, and by the operation of the cam the jaws and the partially-completed nut are moved another ste to the .ri ht in Fig. 2. By this movement t e blank is rought into alinement with the final sha ing-box 29, referably formed in a removab e piece 30.l s soon as the blank reaches this l position a punch 31 is moved forward, so as to enter the blank a short distance or sufficiently far to support the blank when the jaws land 1UL are separated, such separation occurring as soon as the punch has entered the blank. This punch is secured to a slide 32, mounted in suitable bearings in the frame of the machine, and is moved forward by meansf of a cam 33, arranged-to operate against a downward projection 34 from the slide.` The rearward movement of the slide is effected by means of springs 35, surrounding rods extending lrearwardl from the slide through the end of the mac 'ne. For convenience in insertingr and removing the punch the latter is secured in a removable rod or stem 37, adapted to be inserted through .the frame of the machine into the slide 32,

of suitcrates where it is held intorplosition bj; mean's able set-screws. l is punc 31 o through a header or compressingie 38,

whih is secured in a sliding frame 39. This frame surrounds the slide 32, an opening beingformed through the slide 39 for this purpose.- The slide 39 is moved forward to operate the die 38 by means ofa cam 40, operating on a downward extension 41 from the slide. The return movement of the slide is effected by Imeans of springs 42.

As soon as the unch 31 has entered the blank, as stated, tlie jaws 1 and 1a are separated and a die 43 is moved'forward to force the blank entirely over the punch 31 and into the box29. By this movement of the die 43 the small Wall of metal remaining in the nut .1s removed and forced into a longitudinalA opening 1n the die 43. The die 43 may contmue its movement to the left in Fig. 10, so

die 43, and forcing the nut out ofthe box 29. The die 43 is secured to a slide 44, provided with a yoke at its'rear end surrounding the operating-cani 45. In ordertoremovethe metal forced into the die, 43, a rod 46 is arranged within the longitudinal openingin the die and is secured to a cross-bar 47 of the machine, so that when the die is drawn back to the right this wall-metal punching will be removed therefrom.

As soon as the jaws 1 and 1 have separated, as heretofore stated, the carrier is moved backI to the initial position by cam 11, as shown in Fi 2, and the bar is fed forward, so that its en( `will pro'ect through the jaws against the stop 21. 'l`he operatlon heretofore described is then repeated on another blank, and when the first lank has been finished, as heretofore stated, theI second blank has reached its second position, as shown in Fie. 12.

If desired, the lateral spreading effected by the punch 23 ma be assisted by a transverse com ressiongof t e whole body of the blank.

o t iis end I provide a die 48 to operate upon the blank in its second position, as shown in Figs. 13 and 14. When this construction is used, the stop or abutment-wall 21 is cut off sufficiently to allow of the operation of ,this die 48. Ihe unch^23 is arranged to operate through the ie 48, which is secured to a twopart yoke 49, operated by cams 50 on the shaft 27. The return movement of this yoke and die is effected by springs 51. The cams 26 and 50 are so arran ed as to move forward Atogether against the b ank and effect the-desired compression; but the cam 26 is designed to produce a further or additional movement to the punch 23 and cause the same to enter the blank and complete the lateral spreading thereof to fill the matrix, as shownin Fig. 14.

Itwill be understood from the fore oing that in this operation the spreadiner o the blank to the desired dimensions for-t e completed nut is effected almost 'wholly by the displacement of the metal incident to the formation of the hole through the nut. The only waste in this operation is-the small wall of metal removed m the final operation by the punch 31.

I claim herein vas my invention- 1. In a'nut-machine the combination of a shear edge or wall grippingjaws having a shaping-matrix, means or closing said jaws around a bar or rod, a reci rocating punch at one side of the line of fee 'of the bar or rod, and means `for shiftingsaid jaws when in a closed position transversel of the shear ed e or wall and into the line o movement of t 1e punch, substantially as set forth.

2. In a nut-machine the combination of a shear edge or wall grip ing-jaws having a shapin -matrix, means or closin said jaws aroun a bar or rod,means forsiifting ythe jaws when in a closed position transversely IOO IIO

of the shear ed e, and means for laterally spreading the b ank within and while held baror rod, means for shifting the jaws when closed transversely of the shear edgeto complete the severance of the bar or rod and to shift the blank into position for further operation, a punch adapted to s read and partially'perforate the blank an means for reciprocating the punch.

- 4. In a nut-machine the combination of a shear edge or wall, gripping-,jaws having a shaping-matrix, means for closing the jaws around a bar or rod, means for shifting the jaws when closed transversely of the shear edge to complete the severance of the bar or ro and to shift the blank into position for further operations, a punch for spreading and partiallyperforating the blank, means for recilprocating the punch and means for comp eting the perforation or opening through the blank.

5. In a nut-machine the combination of a shear edge or wall gripping-jaws having 'a shaping-matrix, means or closin the jaws around a bar or rod, means for s lfting thejawswhen closed transversely of the shear edge to complete the severance of the bar or rod and to shift the blank into position for further operations, a spreading-punch, a supporting-punch, means for reci rocating said punches, and a reciprocating ie for forcing vthe blank over the Vsupporting-punch and thereby completing the perforation of the nut, substantlally as set forth.

6. In almachine for making nuts, the combination of a shear edge, a spreading-punch, a supporting-punch, ya reciprocating die for forclng a blank over the supporting-punch,

grippingjaws ,having a shaping matrlx, means for closing the jaws around a bar or rod, and means for successively shifting the jaws when closed across the shear edge and into position in front of the spreading and supporting punches, substantlally as set forth.

7. In a machine for making nuts the combination of a carrier provided with guides, /me'ans for reciprocating the carrier, slides arrangedin said guides and provided with jaws having a lshaping-matrix, and means for ing said sli forth.

8. In a machine for making nuts the combination of a carrier provided with guides,P slides arranged in said guides, means for shiftes, means for moving the carrier step by ste in one direction and means for o emn and'closing said jaws and holding-l tlfem cIosed during .the movement of the car- 'rier in one direction, substantially as set returning t e carrier to normal position by a continuous movement, substantially as set forth. l

9. In a machine for making nuts, the combination of a shear edge grip ing-jaws hav-- ing a shaping-matrix, means or clos' said jaws around a bar or rod, means for shifting said jaws when ina closed position across the shear edge and a stop or abutmentextending from feed position in the direction ofthe movement of the jaws, substantially as set forth. l l 10. In a machine for making nuts, th combination of gripping-j aws having a shaping-matrix, means `for closlng said jaws i around a bar or rod, a punch and die for spreading the blank, means for reciprocating t e punch and die, means for shlfting the jaws when in a closed position into line with the unch and die and means for imparting a furt er operative movement to the punch, substantially as set forth.

' 11. In a nut-machine the combinationl of jaws having shaping-matrices provided ,with inwardly-projecting edges; means forclosing the jaws around the bar from which the nuts are to be formed, means for severing the bar outside of the plane of the inwardly-projecting edges of the matrix and means for spreading the blank to ll the matrix.

12. In a nut-machine, the combination of gripping-jaws having a matrix, means for moving said jaws toward and from each other, a punch adapted to enter a blank and support the same when the jaws are open, means for o erating said unch and means for shifting t e jaws into a inement with the punch.

In testimony whereof I have hereunto s'et my hand.

' FREDERICK LACKNER. Witnesses:

lCHARLES BARNETT, vFRED KIRCHNER.

IOO 

